Show simple item record

dc.contributor.authorMunirasu, Selvaraj
dc.contributor.authorNunes, Suzana Pereira
dc.date.accessioned2015-08-03T12:05:06Z
dc.date.available2015-08-03T12:05:06Z
dc.date.issued2014-07-22
dc.identifier.citationMunirasu, S., & Nunes, S. P. (2014). Porous asymmetric SiO2-g-PMMA nanoparticles produced by phase inversion. Journal of Materials Science, 49(21), 7399–7407. doi:10.1007/s10853-014-8434-6
dc.identifier.issn00222461
dc.identifier.doi10.1007/s10853-014-8434-6
dc.identifier.urihttp://hdl.handle.net/10754/563655
dc.description.abstractA new kind of asymmetric organic-inorganic porous structure has been proposed. Asymmetric lattices of polymer grafted silica nanoparticles were manufactured by casting and phase inversion in water. Silica nanoparticles were first functionalized with 3-(dimethylethoxysilyl)propyl-2-bromoisobutyrate, followed by grafting of poly(methylmethacrylate) (PMMA) segments, performed by atom-transfer radical polymerization. Mechanically stable self-standing films were prepared by casting a dispersion of functionalized nanoparticles in different solvents and immersion in water. The resulting asymmetrically porous morphology and nanoparticle assembly was characterized by scanning electron and atomic force microscopy. The PMMA functionalized SiO2 hybrid material in acetone or acetone/dioxane led to the best-assembled structures. Porous asymmetric membranes were prepared by adding free PMMA and PMMA terminated with hydrophilic hydroxyl group. Nitrogen flow of 2800 L m-2 h -1 was measured at 1.3 bar demonstrating the porosity and potential application for membrane technology. © 2014 Springer Science+Business Media New York.
dc.description.sponsorshipResearch reported in this publication was supported by the King Abdullah University of Science and Technology (KAUST).
dc.publisherSpringer Nature
dc.titlePorous asymmetric SiO2-g-PMMA nanoparticles produced by phase inversion
dc.typeArticle
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Division
dc.contributor.departmentEnvironmental Science and Engineering Program
dc.contributor.departmentNanostructured Polymeric Membrane Lab
dc.identifier.journalJournal of Materials Science
kaust.personNunes, Suzana Pereira
kaust.personMunirasu, Selvaraj
dc.date.published-online2014-07-22
dc.date.published-print2014-11


This item appears in the following Collection(s)

Show simple item record